4:3 FREE Nature Wallpapers and Screensavers
HD pictures from all over the world

Brilliant Links

Some great utilities on the web can help you to create your customized wallpaper or screensaver.
More links coming next.

Then BG
Create beautiful backgrounds for websites or desktops online.
This project includes a large collection of textures—wood, rust, paper, concrete and more from Texturise—which can be combined with linear-gradients or colors to create a wide assortment of themes.
Drag & Drop images into the browser to generate tile-able patterns!
Enter full-screen mode, and design your own desktop wallpaper!

Examples: click on thumbnails to see full sized wallpapers in an other window
Original wallpaper	Tiled Wallpaper	Tiled (color)	Tiled (gradient)